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San Bernardino Flying Squirrel Use Of Residential Areas: A Citizen Science Approach, Kevin Clark, Scott Tremor, Brian Gibson, Kimberly Ferree, Clark Winchell
San Bernardino Flying Squirrel Use Of Residential Areas: A Citizen Science Approach, Kevin Clark, Scott Tremor, Brian Gibson, Kimberly Ferree, Clark Winchell
Western North American Naturalist
The San Bernardino flying squirrel (Glaucomys oregonensis californicus) is a California Species of Special Concern restricted to montane forests of southern California. We confirmed the distribution of this species in residential areas of the San Bernardino and San Jacinto Mountains with the assistance of citizen scientist volunteers. Project participants placed motion sensor camera traps near bird feeders on their property and uploaded their results to a project webpage and associated iNaturalist project. Flying squirrels were documented at all sites monitored in the San Bernardino Mountains but were not detected in the San Jacinto Mountains, consistent with survey results …
Asymmetrical Host Switching By Two Groups Of Obligate Ectosymbionts Of Crayfishes, Bronwyn W. Williams, Patricia G. Weaver
Asymmetrical Host Switching By Two Groups Of Obligate Ectosymbionts Of Crayfishes, Bronwyn W. Williams, Patricia G. Weaver
Western North American Naturalist
The Snake River Pilose Crayfish, Pacifastacus connectens (Faxon 1914), previously known only from the middle Snake River drainage in south-central Idaho west to the Harney Basin in southeastern Oregon, was discovered in the lower Deschutes River in north-central Oregon co-occurring with Signal Crayfish, Pacifastacus leniusculus (Dana 1852). Two groups of obligate ectosymbionts (i.e., entocytherid ostracods and branchiobdellidans) associated with these 2 Pacifastacus species displayed asymmetrical patterns of host switching, with host exchange primarily occurring from P. leniusculus onto P. connectens. Our results have implications for understanding patterns of host specificity over short ecological timescales but also raise questions …